336 



MARCHANTIACE.35. 



takes place irregularly between the cells, or rather between 

 the two outer 



The terminal central scales of each frond or its lobe, are as 

 usual inflexed over on the upper surface. 



In this the young roots abound with granular matter, but 

 the mature ones are quite empty, a curious resemblance with 

 the pollen tubes. 



Curious from its lateral female flower buds, and from the 

 aerating tissue being uninterrupted by septa ; whereas in 

 some others each stoma has a compartment of its own. 



REBOUILLIA. 



Rebouillia graminosa. Capsula circumscissa PI. LXIX. 

 Fig. I. found in shady banks at Otipore. 



(Rebouillia PI. LXVIL J 



Frondes spathulatse, oblongae bilobae, dioicae semper, 

 structurae typicales, nempe e cute supera stomatosa, pagina 

 viridi uninterrupta, et tela infera densiore e partibus duabus, 

 supera densissima, purpurascens, inflorescente origine dense 

 et infera minus densa, dicolorata, infra radiculos emittens, se- 

 cus centrum vena ? excepta cuticula inferna, colorata atro- 

 sanguinea ; cute supera latiore, extus integra adhferente, intus 

 (radicibus) dislocata : in squamis obliquis adhaerentibus fronde. 



Flos faemin. initio sessilis, squamis cellulosis longis an- 

 gustis imbricatis obsit. Occupying a depression in the sinus 

 of the lobes, caput 4 lobum : lobis extus unia notulis, uniflo- 

 ris, ovario nudo. 



Fructus longe stipitatus, stipite 3 uncialibus erecto, struc- 

 tura fere Marchantiae, sed stomatibus nullis, one groove, but a 

 tendency to have an aerating upper surface, as testified by the 

 presence of obsolete cells, under its cuticle, infra glabratus vel 

 hincillinc piloso squamatus, apice densiuscula piloso-squamata 

 in initio capitis junioris obtegent villosa. 



Caput conico-globosum radiato 4 lobum, superficie supera 

 stomatosa, involucra bivalvia, membranacea. 



